# HX7344

**HX(hengjiaxing)** · Linear Voltage Regulators (LDO) · SOT-89-3

HX7344 from HX(hengjiaxing), in a SOT-89-3. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND | power_in | Chip ground terminal (芯片接地端) for the HX73XX LDO regulator. |
| 2 | VIN | power_in | Input voltage pin; the datasheet gives a maximum input voltage of 15 V (absolute maximum) and states regulation is maintained with VIN up to 12 V. |
| 3 | VOUT | power_out | Regulated output terminal (芯片输出端) that delivers the fixed output voltage, with a stated tolerance of ±3%. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HX(hengjiaxing) |
| Package | SOT-89-3 |
| Category | Power Management ICs |
| Pins | 3 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Maximum input voltage | VIN |  |  | 15 | V |  | 2 |
| Power dissipation | PD |  |  | 200 | mW |  | 2 |
| Operating temperature | Tw | -25 |  | 70 | ℃ |  | 2 |
| Storage temperature | Tc | -50 |  | 125 | ℃ |  | 2 |
| Soldering temperature | Th |  |  | 260 | ℃ | 10s | 2 |
| Output voltage tolerance |  | -3 |  | 3 | % |  | 1 |

## CAD (KiCad official)

- Symbol: `HX7344`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files: `hx7344-etched.step` / `hx7344-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hx7344.step` / `hx7344.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [HX(hengjiaxing) datasheet](docs/hx7344-datasheet.pdf) (7 pp, sha256 `cb520525a3f014e3`, retrieved 2026-11-05, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/hx7344-datasheet.pdf)